This is so weird. I had to copy off my directory, so I could revert my code and create a build. After "putting back" my code I was playing with, the error is no longer there. It all seemed to work. I really wish I knew what changed, since it will probably bite me again later. I really appreciate the help.
John --- In [email protected], "Alex Harui" <[EMAIL PROTECTED]> wrote: > > Is it any cell that barfs or the TextInEmbedded cell that barfs? > rendererIsEditor is false so itemEditorInstance will be null. Might be > better if it isn't > > > > > > > > > > > > ________________________________ > > From: [email protected] [mailto:[EMAIL PROTECTED] On > Behalf Of j_lentzz > Sent: Wednesday, September 19, 2007 1:50 PM > To: [email protected] > Subject: [flexcoders] Re: DataGrid editor/renderer MouseDownHandler > error > > > > Here's the sample of code for the DG, DGColumns and Renderer. I'm > dynamically adding columns to a DG, so I don't have mxml to show. The > addColumn method is used to dynamically add. I don't have a code test > case to provide, since it would be too large. Here is how I call the > addColumn routine: > > LPA_businessRiskName.addColumn("Business Risk Name", > "businessRiskName", 200, true, new ClassFactory(TextInEmbedded), obj, > svco); > > Any help would be greatly appreciated. Thanks a bunch. > > John > > Code snippets follow: > > /* method used to dynamically add columns to data grid */ > > public function addColumn(header:String, fieldName:String, > width:int, visible:Boolean, itemRenderer:IFactory=null, > defaultValue:Object=null, vco:ValidatorConfigObject=null):void { > > var newColumn:DataGridColumnValidated = new DataGridColumnValidated(); > if (vco != null) > newColumn.validatorConfigType = vco; > > newColumn.visible = visible; > // get current columns > var gridColumns:Array = dg.columns; > newColumn.headerText = header; > newColumn.dataField = fieldName; > if (vco != null) { > newColumn.deepDataField = fieldName + ".value"; > newColumn.dataField = fieldName + ".value"; > } > else > newColumn.deepDataField = null; > newColumn.width = width; > newColumn.editable=true; > if (itemRenderer != null) { > > var rendererItem:Object = itemRenderer.newInstance(); > > if (rendererItem is TextInEmbedded) { > var textIn:ClassFactory = new ClassFactory(TextInEmbedded); > if (vco != null) // assign properties > textIn.properties = {maxLength: > StringValidatorConfigObject(vco).maxLength, minLength: > StringValidatorConfigObject(vco).minLength, required: vco.required, > vEnabled: vco.enabled}; > // test to see if can edit and then display as label with ... to > truncate - seems to work > // this uses a different widget as the editor, but renderers it as a > label, to allow for truncation > var labelIn:ClassFactory = new ClassFactory(Lbl); > labelIn.properties = {truncateToFit: true, maxLength: > StringValidatorConfigObject(vco).maxLength, minLength: > StringValidatorConfigObject(vco).minLength, required: vco.required, > vEnabled: vco.enabled}; > //TEST FOR VALIDATIO newColumn.itemRenderer = labelIn; > //newColumn.itemRenderer = new ClassFactory(ValidatedCellRenderer); > newColumn.itemEditor = textIn; > newColumn.itemRenderer = textIn; > newColumn.rendererIsEditor = false; // TEST FOR VALIDATION > }else if (rendererItem is NumericInEmbedded) { > var numIn:ClassFactory = new ClassFactory(NumericInEmbedded); > if (vco != null) // assign properties > numIn.properties = {maxValue: > NumberValidatorConfigObject(vco).maxValue, minValue: > NumberValidatorConfigObject(vco).minValue, required: vco.required, > vEnabled: vco.enabled}; > // test to see if can edit and then display as label with ... to > truncate - seems to work > // this uses a different widget as the editor, but renderers it as a > label, to allow for truncation > var nlabelIn:ClassFactory = new ClassFactory(Lbl); > nlabelIn.properties = {truncateToFit: true}; > newColumn.itemRenderer = numIn; > // TEST FOR VALIDATION newColumn.itemRenderer = nlabelIn; > newColumn.itemEditor = numIn; > newColumn.rendererIsEditor = true;; // TEST FOR VALIDATION > } > > } > gridColumns.push(newColumn); > dg.columns = gridColumns; > } > > /* extended DataGridColumn */ > > public class DataGridColumnValidated extends DataGridColumn > { > private var _validatorConfigType:ValidatorConfigObject=null; > private var _isRequired:Boolean = false; > private var _hasValidator:Boolean = false; > > public function DataGridColumnValidated(columnName:String=null) > { > super(columnName); > } > > public var deepDataField:String; > > > public function get validatorConfigType():ValidatorConfigObject { > return _validatorConfigType; > } > > public function set > validatorConfigType(value:ValidatorConfigObject):void { > _validatorConfigType = value; > _isRequired = value.required; > } > > public function get isRequired():Boolean { > return _isRequired; > } > > public function get hasValidator():Boolean { > return (_validatorConfigType != null) > } > > } > > /* itemRenderer - base class follows this section */ > > public class TextInEmbedded extends TextIn > { > > //---------------------------------------------------------- > // > // Constructor > // > > //---------------------------------------------------------- > > /** > * Constructor. > */ > public function TextInEmbedded() > { > super(); > this.setStyle("backgroundAlpha", 0); > this.setStyle("borderStyle","none"); > } > > override protected function setField(event:Event, > fieldValue:String):void { > this.text = fieldValue; > // for the embedded numeric type, you must use the data Object > this.data[event.currentTarget.listData.dataField] = fieldValue; > } > > } > } > > /* base class for Renderer */ > > public class TextIn extends TextInput > { > > private var _val:StringValidator; > private var _maxLength:Number; > private var _minLength:Number; > private var _required:Boolean = false; > private var _requiredFieldError:String; > private var _tooLongError:String; > private var _tooShortError:String; > private var _vEnabled:Boolean = true; > private var _locked:Boolean = false; > > //---------------------------------------------------------- > // > // Constructor > // > > //---------------------------------------------------------- > > /** > * Constructor. > */ > public function TextIn() > { > super(); > > _val = new StringValidator(); > _val.source = this; > _val.property = "text"; > _maxLength = _val.maxLength; > _minLength = _val.minLength; > // _required = _val.required; // don't use default for > StringValidator - let app set > _requiredFieldError =_val.requiredFieldError; > _tooLongError =_val.tooLongError; > _tooShortError =_val.tooShortError; > _val.enabled = false; > // _val.triggerEvent="change"; > > if (!isNaN(_val.maxLength)) > this.maxChars = _val.maxLength; > > this.addEventListener(Event.CHANGE, textChanged); > > > _val.addEventListener(mx.events.ValidationResultEvent.INVALID, > validationFailedHandler); > _val.addEventListener(mx.events.ValidationResultEvent.VALID, > validationPassedHandler); > // register with screen level class to notify this when > validation event is fired > // > mx.core.Application.application.addEventListener(ValidateWidgetEvent.VAL > IDATE, > validateThis, false); > } > > private function validateThis(event:ValidateWidgetEvent):void { > var failed:Boolean; > this.validateNow(); > failed = performValidation(); > if (failed) > dispatchEvent(new > ValidateWidgetEvent(ValidateWidgetEvent.VALIDATION_FAILED)); > else > dispatchEvent(new > ValidateWidgetEvent(ValidateWidgetEvent.VALIDATION_PASSED)); > } > > > private function textChanged(event:Event):void { > var fieldValue:String = assets.Util.removeLeadingSpaces(this.text); > setField(event, fieldValue); > this.validateNow(); > performValidation(); > } > > protected function setField(event:Event, fieldValue:String):void { > this.text = fieldValue; > } > > public function performValidation(value:String=null):Boolean { > if (value == null) > var fieldValue:String = this.text; > else > fieldValue = value; > > if (required) { > if (fieldValue.length < 1) { > this.errorString = this.requiredFieldError; > return(false); > } > else > this.errorString = ''; > }else if (!isNaN(_val.maxLength)) { > if (fieldValue.length > _val.maxLength) { > this.errorString = this._tooLongError; > return(false); > } > else > this.errorString = ''; > }else if (!isNaN(_val.minLength)) { > if (fieldValue.length < _val.minLength) { > this.errorString = this._tooShortError; > return(false); > } > else > this.errorString = ''; > } > > return true; // passed > } > > protected function > validationFailedHandler(event:ValidationResultEvent):void { > this.setStyle("borderStyle","solid"); > trace('validation Failed'); > trace('Fail value:' + this.text); > // dispatchEvent(new > ValidationResultEvent(mx.events.ValidationResultEvent.INVALID, true, > false)); > } > > protected function > validationPassedHandler(event:ValidationResultEvent):void { > this.setStyle("borderStyle","none"); > trace('validation Passed'); > trace('Pass value:' + this.text); > // dispatchEvent(new > ValidationResultEvent(mx.events.ValidationResultEvent.VALID, true, > false)); > } > > > > override public function set data(value:Object):void > { > super.data = value; > > var dgListData:DataGridListData = listData as DataGridListData; > var dataGrid:DataGrid = dgListData.owner as DataGrid; > var column:DataGridColumnValidated = > dataGrid.columns[dgListData.columnIndex]; > if (column.deepDataField != null) { > var fields:Array = column.deepDataField.split('.'); > var lastField:String = fields.pop(); > var o:Object = value; // was data > var n:int = fields.length; > for (var i:int = 0; i < n; i++) > o = o[fields[i]]; > if ("value" in o) > listData.label = o[lastField].toString(); > else > listData.label = o.toString(); > } > > this.text = listData.label; > this.toolTip = listData.label; > > > // var t1:String = value.businessRiskName.value; > // var b1:Boolean = value.businessRiskName.passedValidation; > > } > > } > > --- In [email protected] <mailto:flexcoders%40yahoogroups.com> > , "Alex Harui" <aharui@> wrote: > > > > Post the relevant code: The DG, the DGColumns, the Renderers. A small > > test case if you can create one. > > > > > > > > Do you have floating hit targets or is the mouse hitting something > that > > isn't parented by the renderer? > > > > > > > > ________________________________ > > > > From: [email protected] <mailto:flexcoders%40yahoogroups.com> > [mailto:[email protected] <mailto:flexcoders%40yahoogroups.com> > ] On > > Behalf Of j_lentzz > > Sent: Wednesday, September 19, 2007 12:09 PM > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > > Subject: [flexcoders] Re: DataGrid editor/renderer MouseDownHandler > > error > > > > > > > > That is what I can't figure out. I don't know what I could do to make > > it null. I'm trying to use the ideas from your sub-object example, so > > I can pass in an object to the editor/renderer so it can then validate > > the value and set a pass/fail validation value - Ex: I 'm passing in > > an object to businessRiskName where value="high" and > > passValidation=true. So I'm trying to use the sub-objects > > businessRiskName.value and businessRiskName.passValidation. I've been > > able to get them to display properly, but when I click on the datagrid > > I get the error I've described. I'm wondering if I'm not getting the > > data from the grid/provider correctly, but don't know where to look. > > > > Any guidance would be greatly appreciated. > > > > Thanks, > > > > John > > --- In [email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > , "Alex Harui" <aharui@> wrote: > > > > > > How did itemEditorInstance get to be null? > > > > > > > > > > > > ________________________________ > > > > > > From: [email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > [mailto:[email protected] > <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > ] On > > > Behalf Of j_lentzz > > > Sent: Wednesday, September 19, 2007 11:23 AM > > > To: [email protected] <mailto:flexcoders%40yahoogroups.com> > <mailto:flexcoders%40yahoogroups.com> > > > Subject: [flexcoders] Re: DataGrid editor/renderer MouseDownHandler > > > error > > > > > > > > > > > > For what it is worth, this is the error I get at runtime when I > click > > > on the cell: > > > > > > TypeError: Error #1009: Cannot access a property or method of a null > > > object reference. > > > at > > > > > > mx.controls::DataGrid/mx.controls:DataGrid::mouseDownHandler()[E:\dev\fl > > > ex_201_borneo\sdk\frameworks\mx\controls\DataGrid.as:4239] > > > --- In [email protected] > <mailto:flexcoders%40yahoogroups.com> > > <mailto:flexcoders%40yahoogroups.com> > > <mailto:flexcoders%40yahoogroups.com> > > > , "j_lentzz" <jelentz@> wrote: > > > > > > > > I've been working on getting a datagrid to validate and I am > close. > > > > However, whenever I click on a cell in the datagrid, I get a > runtime > > > > error in the DataGrid.as file, because my itemEditorInstance is > > null. > > > > However, I am providing an extended TextInput to the datagrid > column > > > > the itemEditor and the itemRenderer. I've tried setting the > > > > rendererIsEditor to both true and false, but nothing changes. Has > > > > anyone seen this? Or can tell me what I'm doing wrong? I'm trying > to > > > > follow examples, but obviously I'm doing something wrong. > > > > > > > > Thanks, > > > > John > > > > > > > > > >
